Major League Baseball’s draft began in 1965 when the Kansas City Athletics chose Arizona State outfielder Rick Monday with the very first pick. With the 50th edition of the draft set for Thursday, we list the top 10 first-round selections (with five honorable mentions) by the Giants and A’s.

Please note that the choices were based on what each pick did while playing for the team that drafted him – and what more that man might do for the orange and black or green and gold. Some first-round picks by S.F. and Oakland put together fine careers beyond the Bay Area, but post-Northern California accomplishments didn’t factor into these rankings. Also note that teams occasionally had more than one first-round pick in a year.